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• 17:59, 19 December 2025 Wikilah admin talk contribs created page ISBN (identifier) (Created page with "An ISBN (International Standard Book Number) is a standardized identifier used to uniquely label a specific book product for discovery, cataloging, and sales. It does not identify the “work” in the abstract; it identifies a particular edition and format released by a specific publisher, which is why the same title can have different ISBNs for hardcover, paperback, e-book, audiobook, or new editions. Modern ISBNs are 13 digits (older ones are 10 digits) and include a...")